/**
 * Created by IntelliJ IDEA.
 * User: torstein
 * Date: 3/14/12
 * Time: 11:36 AM
 * To change this template use File | Settings | File Templates.
 */
import java.util.ArrayList;

public class Relation {;
    private ArrayList<Arrow> positive;
    private ArrayList<Arrow> negative;
    
    public void Relation (ArrayList positive, ArrayList negative) {
        this.positive = positive;
        this.negative = negative;
    }

    public void Relation (ArrayList positive) {
        this.positive = positive;
    }
    
    public String toString () {
        String r = "";

        ArrayList<Arrow> p = new ArrayList<Arrow>();
        for (Arrow a : positive) {
            p.add(a);
        }

        if (negative != null) {
            ArrayList<Arrow> n = new ArrayList<Arrow>();
            for (Arrow a : negative) {
                n.add(a);
            }
        }


        
        
        return r;
    }
}
